Home / 27,809.68-38,377.16-15,062.57

Finding the Fourth Proportional to 27,809.68, 38,377.16 and 15,062.57

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Solution

The fourth proportional to 27,809.68, 38,377.16 and 15,062.57 is: 20,786.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,809.68 : 38,377.16 = 15,062.57 : x
  2. Step 2: Convert to fraction form
    27,809.68/38,377.16 = 15,062.57/x
  3. Step 3: Cross multiply
    27,809.68x = 38,377.16 × 15,062.57
  4. Step 4: Simplify right side
    27,809.68x = 578,058,792.50
  5. Step 5: Solve for x
    x = 578,058,792.50/27,809.68
  6. Step 6: Final answer
    x = 20,786.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.